二项式光场与级联型三能级原子相互作用的场熵演化特性

研究了二项式光场与级联型三能级原子相互作用过程中场熵的演化规律,结果表明:场熵随时间的演化是振荡的,并受到光场参数η和M的影响,且η和M对场熵的影响相类似,随着η值或M值的不断增大,场熵振荡的周期性被破坏,最大值和平均值增大,场与原子的总体关联程度增强;当ηM的值较大时,场熵的演化振荡出现崩塌和复苏现象,演化曲线受到一个"载波"的调制作用.

Entropy evolution properties of the field in the system of the cascade three-level atom interacting with binomial state for radiation field

The entropy evolution properties of the field in the system of the cascade three-level atom interacting with binomial state for radiation field is studied. The results indicate that the field entropy is influenced by the field parameters η and M. With the increasing of the value of η or M. the maximum value and average value of the field entropy is increasing. and the related degree of the field-atom is getting stronger and stronger. When the value of η M is large, the evolution curves of the field entropy display the phenomenon of collapse and revival, with the increasing of time, the revival oscillation frequency of the evolution curves of the field entropy becomes large obviously.